baber/WOPTO huggingface dataset:
Patent GB-663747-A (GB)
Title: Valve means for controlling the filling and draining of tanks
IPC: F16L37/36
Filed: 1948-05-28
Abstract: 663,747. Filling and draining tanks. PARKER APPLIANCE CO. May 28, 1948 [May 29, 1947], No. 14404/48. Class 21. [Also in Group XXIX] A fitting through which a tank is filled or drained comprises a housing having an inlet or outlet 11 controlled by a valve 17, and inlet ports 30 controlled by a fluid pressure actuated valve 35. In filling the tank, a nozzle as described in Specification 663,749, is attached to the housing sleeve 13. The opening of the nozzle valve 76 raises the valve 17 and the liquid pressure opens the valve 35 to permit liquid to enter the tank. The valve 35 has a leak-off port 43 communicating with a float controlled valve 50 at the top of the tank, through a lead 45 when the tank is filled, the valve 50 is closed by the float 53 and pressure accumulates above the valve 35, permitting it to be closed by its spring 41. In draining the tank, the nozzle is fitted, its valve opened and liquid pressure in the tank opens flap valves 24 against their springs 26a to permit the tank to empty.
Patent GB-810198-A (GB)
Title: Improvements in fluid pressure valves
Inventor: DEWAR DOUGLAS
IPC: F16K31/40
Filed: 1955-05-19
Abstract: 810,198. Valves. DUNLOP RUBBER CO. Ltd. May 1, 1955 [May 19, 1955], No. 14423/55. Addition to 722,468. Class 135. In the solenoid-controlled fluid pressure valve described in the parent Specification, the stationary valve guide for the hollow cylindrical shuttle valve member 14 is replaced by a fluidtight slidable piston 14a integral with the shuttle member 14. The piston carries a sealing ring 11, a lubricating ring 10 and a retaining ring 12 and slides in a chamber 1 having a connection 8 to a source of fluid pressure, and coaxial outlet and relief passages 3, 22. The ends of the member 14 are chamfered to co-operate with a seating ring 5 and an annular sealing washer 13. The latter is retained in an external groove in a tubular member 28 projecting into the member 14 and terminating short of a partition 15 therein when the member 14 seals against the washer 13 to cut off the relief passage 22. The connection 8 communicates through a restricted passage 18 with a chamber 30 above the piston 14a. When the relief valve formed by the upper end of the shuttle member 14 is open the chamber 30 is connected to the passage 22 through radial passages 19. The shuttle member is loaded to close the outlet valve and open the relief valve by a spring 29. The passage 22 is normally closed by a spring-loaded exhaust valve 25 carried by a plunger 24 forming the core of a solenoid 20. On energization of the solenoid, the exhaust valve 25 opens and vents the pressure in the chamber 30 and so that the pressure in the chamber 1 below the piston 14a overcomes the spring 29. The outlet valve therefore opens and the relief valve closes. These valves remain in this position even if the solenoid is deenergized and the exhaust valve closed until the pressure at the source is shut off or substantially reduced.
Patent GB-1205770-A (GB)
Title: Body implants
IPC: A23L27/00
Filed: 1967-07-26
Abstract: 1,205,770. Body implants. NATIONAL PATENT DEVELOPMENT CORP. 26 July, 1967 [26 July, 1966; 5 July, 1967], No. 14454/ 70. Divided out of 1205764. Heading A5R. Body implants are formed wholly or partly from a polymer of a water-soluble monoester of an olefinically unsaturated carboxylic acid having at least one hydrophilic functional group in its alcohol moiety. The polymer is preferably poly(2-hydroxyethyl methacrylate) or a copolymer of 2-hydroxyethyl methacrylate and ethylene glycol dimethacrylate or butylene glycol dimethacrylate. Specified implants are arterial, venous or other vessel (e.g. urinary tract) substitutes, which can be made isotonic with the surrounding tissue by steeping in physiological saline solution and which can have an anticoagulant such as heparin incorporated therein; contraceptive devices such as intrauterine implants and diaphragms; and heart valve members and catheters. Medicaments such as antibiotics, steroids, bactericides, antivirals and fungicides can be incorporated in the implants. When the implant is a vessel substitute it can be reinforced with woven fibres or synthetic fibres. Where rigidity is desired, e.g. in contraceptive devices, a filler may be included in the polymer material, e.g. barium sulphate, calcium carbonate or clay. The implants can be based on a different plastics material, e.g. nylon or polyethylene, which is then coated with the polymer of the water-soluble ester.
Patent GB-391323-A (GB)
Title: Improvements in and relating to electric switches
IPC: H01H23/20
Filed: 1932-05-21
Abstract: 391,323. Tumbler switches. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.- (Assignees of Allgemeine Elektricitõts-Ges.; 2, Friedrich Karl-Ufer, Berlin.) May 21, 1932, No. 14491. Convention date, May 21, 1931. [Class 38 (v).] A tumbler switch comprises a dolly 5 and a contact-carrier 6 independently rotatably mounted on a shaft 4 and interconnected by means of a coiled spring 8, the free ends 9 of which embrace a projection 10 on part 6 and a pin 11 mounted in the dolly 5 and passing through curved slots 12 in contact-carrier 6 and between the free ends 9-of the spring 8. In either of its extreme positions member 6 is held by means of a V-shaped bolt 14 guided in grooves 15 and upwardly urged from the base of the switch by a spring 13. Member 6 carries contact-making pins 17 urged outwardly by springs 18 against the walls of the baseplate and connecting pieces 16. Operation is as follows : movement of dolly 5 tensions the spring 8 and causes downward movement of the locking bolt by the pressure of shanks 7 of the dolly on the upwardly extending arms of the bolt, when this is completely freed the energy stored in the spring 8 causes a snapover of the contact-carrier 6, which is again locked in position by upward movement of bolt 14 under the action of spring 13. Reverse movement of the dolly produces the same sequence of operations. The pins 17 may be fitted with stops and the side walls of the base plate be grooved so that the pins move in air after opening the circuit.
Patent GB-261634-A (GB)
Title: Improved safety keps
IPC: B66B17/34
Filed: 1926-06-26
Abstract: 261,634. Aughtie, H., and Goldsmith, R. L. G. June 26, 1926. Catch gear of mine-cage type. -SafetyÀ gear for supporting a mine cage in the event of an overwind and failure of the detaching hook to engage the catch girders, applicable also to inclined haulage ways, comprises pivoted catches projecting into the cage well, the operative catches being held in the active position by the succeeding catches. The catches 2 are mounted on pivots 3 in the head frame 1 and have a projecting end 4 normally projecting into the well and a lower end 5 abutting against a stop 7. In operation the cage hoop 6 rides past the lowest set of catches by tilting them to the inoperative position and then similarly tilts the next set of catches, the lower ends of which, as shown in dotted lines, strike the catches beneath them and so positively force them into the operative position. As the cage rises further, successive sets of catches are acted on so that the possible fall of the cage is limited to the distance between adjacent sets of catches.
Patent GB-332326-A (GB)
Title: Improvements in or relating to combination tops for gas ranges and other cooking apparatus
IPC: F24C15/10
Filed: 1929-05-09
Abstract: 332,326. Myers, W. H. May 9,1929. Hot-plates; lids and covers.-A hot-plate for gas ranges and the like is formed above each burner with an opening comprising a central aperture 13 with radial extensions 14 separated by arms 15, there being a removable cover 20 for the opening of corresponding shape to it, and having the edges of the arm portions 22 slightly spaced from the edges of the adjacent arms 15, Fig. 3A. Preferably the edges of the arms 15, 22 are bevelled as shown to form, in conjunction with the bottom of the utensil, horizontal flues 23, the gases passing up to these flues through the gaps between the arms, and thence through channels 18 to depressions 17 formed in the top of the hot-plate. Vertical corrugations or channels 16 may be provided in the edges of the arms 15, and if desired in the edges of the arms 22 also, to allow the gases to pass to the channels 23 should the expansion of the arms close the spaces between them. Ribs may ibe provided on the underside of the cover.
Patent GB-518261-A (GB)
Title: A process for the production of refined iron and alloy steels
IPC: C21D3/04
Filed: 1938-05-16
Abstract: 518,261. Refining iron and alloy steels. WESTBERG, S. May 16, 1938, Nos. 14533 and 14534. Convention dates, May 18, and July 27, 1937. [Classes 72 and 82(i)] Impure irons or alloy steels containing one or more of the elements silicon, nickel, chromium and aluminium, are refined by subjecting them in finely divided or granulated form to heat treatment in the solid state in the presence of a decarburizing gas mixture and then melting them under conditions which will maintain the already attained purity, e.g., in the presence of inert gases or under reduced pressure. When the decarburizing gas mixture contains hydrogen an element such as aluminium, silicon, calcium or magnesium, which will react with the gaseous products of the heat treatment and regenerate the hydrogen may be present. The iron &c. may be coated with an oxide such as lime or a ceramic material such as spinel or sillimanite by suspending such material in the quenching medium used to produce the granulated material. To remove any phosphorus present, the melting may be carried out in an electric induction furnace in the presence of a basic material such as lime or a basic oxidising slag.
Patent GB-735876-A (GB)
Title: Manufacture of artificial resins from aldehydes and aromatic hydrocarbons
Inventor: LUNN WILLIAM
IPC: C08L61/18
Filed: 1952-06-10
Abstract: Boron trifluoride co-ordination complexes are used instead of the acid reacting substances used in the parent Specification as hardening catalysts for aromatic hydrocarbon-aldehyde resins, stabilization of the hardened resins being effected by passing steam therethrough.  A long list of the complexes is given. Specification 633,923 is referred to.
Patent GB-1300156-A (GB)
Title: Optical imaging system
IPC: G02B27/18
Filed: 1970-03-26
Abstract: 1300156 Optical systems XEROX CORP 26 March 1970 [28 March 1969] 14646/70 Headings G2H G2A and G2J A stationary original on a platen 16 is line-byline imaged on to a moving photo-conductive web 10 by an optical system 20; system 20 comprising three strips 22, 24, 26 of lens elements and a prism 30 arranged to form a right reading image on web 10. System 20 is moved in the same direction as and at half the speed of web 10 during copying. Prism 30 may be a Dove prism or a V-shaped prism (74) Fig.3 (not shown). System 20 preferably includes an aperture stop 40 and a field stop 42.
Patent GB-875501-A (GB)
Title: Improvements in motor vehicle transmissions
IPC: F16H61/14
Filed: 1957-05-08
Abstract: 875,501. Clutch combinations. MARTIN, G. P. B. July 31, 1958 [May 8, 1957], No. 14661/57. Class 80 (2). In a motor vehicle transmission wherein a single or multi-stage hydrodynamic torque converter 3 of the overrun reactor type is bridged by a parallel centrifugal friction clutch 12, the converter turbine 7 transmits torque to an output shaft 14 through means which produces a tendency to disengage the friction clutch, whereby high torque is transmitted mainly by the converter. In Figs. 1 and 2, such means comprises a toothed pinion 8 on the turbine 7 meshing teeth on bell-cranks 9 pivoted at 10 on the output shaft 14 and pivotally carrying centrifugal friction clutch shoes 12 for radial engagement with an input drum 2. Clutch pressure may be increased or decreased by torque responsive action of the pivoted shoes or by preloading as by resilient bushings at the bell-crank pivots 10. In Fig. 3 (not shown), a cone clutch comprises a male friction element diaphragm mounted on the output shaft and axially cammed by the relative rotation of the turbine which pivotally carries centrifugal masses geared to the output shaft and has a helical cam and ball connection with the male friction element. All or some of the centrifugal masses may act through springs or other resilient means and have their outward movement limited.
Patent GB-257674-A (GB)
Title: Improvements in or relating to the sealing or fixing of casing tubes in bore holes, wells or the like
IPC: E21B33/14
Filed: 1925-06-05
Abstract: 257,674. Neelands, A. R., and Francois Cementation Co., Ltd. June 5, 1925. Hardening the ground.-A casing tube with a base ring d is positioned in a borehole &c. and a metallic packing ring e, formed as in Fig. 7, is then dropped on to the base ring and expanded as by hammering by a reciprocating tube; soft packing such as lead wool, hemp, &c. g is then positioned and rammed, and further rings and soft packings positioned and rammed as required. Cement &c. is then placed in the casing tube and pressure applied thereto.
Patent GB-514850-A (GB)
Title: Manufacture of substituted perinaphthindandiones
IPC: C07C49/643
Filed: 1938-05-17
Abstract: 514,850. Perinaphthindandiones. SOC. OF CHEMICAL INDUSTRY IN BASLE. May 17, 1938, No. 14691. Convention date, May 18, 1937. [Class 2 (iii)] Perinaphthindandiones having groups forming salts with acids or bases in the naphthalene nucleus are produced by treating a correspondingly substituted naphthalene 1.8 dicarboxylic acid or the anhydride thereof with a malonic acid ester, e.g., diethyl malonate or by reducing a nitroperinaphthindandione, e.g., with an alkali hydrosulphide if desired in presence of an alkaline earth salt. Suitable starting materials are 3-hydroxy-naphthalene-1, 8-dicarboxylic anhydride ; naphthalene-1, 8- dicarboxylic acid anhydride - 3-sulphonic acid and 3-aminonapnthaleiie-1, 8-dicarboxylic acid anhydride. The reactants are preferably heated together to 150-250‹C. if desired in the presence of an inert solvent or diluent and of a condensing agent, e.g., zinc chloride. Examples describe the preparation of (1) 5-hydroxy-perinaphthindandione ; (2) 5-sulphoperinaphthindandione ; (3) 5-aminoperinaphthindandione by reduction of the corresponding nitro group.
Patent GB-154137-A (GB)
Title: Improvements relating to the manufacture of propellers
IPC: B27M3/10
Filed: 1920-05-31
Abstract: 154,137. Metropolitan - Vickers Electrical Co., (Westinghouse Electric & Manufacturing Co.). May 31, 1920. Screw propellers.-Relates to propellers made of fibrous material such as superimposed sheets of paper, duck, &c. impregnated with a binder such as a phenolic condensation product which is hardened by the application of heat and pressure, and consists in partly hardening the propeller in a mould for two to four hours, under pressure and at a temperature of 180‹, removing the propeller from the mould and completing the hardening in an open clamp frame at a temperature of from 100‹ to 125‹ C. for from four to twelve hours. A suitable clamp-frame comprises a base 1 and centring-pin 2 for the boss. Plates 7 are set to the pitch angle on brackets 6, and curved plates 8 for the backs of the blades are held down by bands 10 bolted to the brackets 6.
Patent GB-183016-A (GB)
Title: Improvements in agricultural hoes
IPC: A01B35/08
Filed: 1921-05-27
Abstract: 183,016. King, E. B. May 27, 1921. Multiple-tool machines; adjusting parts of.-A machine for hoeing between or earthing up rows of potatoes &c. and removing weeds &c. has lateral hoeing-tools f mounted rigidly on bars g which are adjusted by a lever j and links k, and are secured by a double-armed clamp l, screw and nut i, and lever m. The bars g slide in guides h on the frame a. The machine shown is horse-drawn, but the improvements may be adapted to self-propelled hoes.
Patent GB-144280-A (GB)
Title: Improvements in chimneys for inverted incandescent gas lamps
IPC: F23D14/30
Filed: 1920-06-01
Abstract: 144,280. Killing, K. Nov. 3, 11.6, [Convention date]. Chimneys. - The chimney d of an inverted incandescent gas lamp is contracted at or about the level of the bottom of the incandescent mantle to a diameter substantially equal to that of the largest diameter of the mantle, and is formed with a funnel-shaped lower part g.
Patent GB-224201-A (GB)
Title: Improvements in or relating to teaseling machines
IPC: D06C11/00
Filed: 1924-06-21
Abstract: 224,201. Piguet, M., (Assignee of Morel, S.). Oct. 31, 1923, [Convention date]. Nap, raising.- The cloth passes over a fixed bed of felt k<1> covered with thick cloth and is acted upon by two rollers l, m driven in the same direction, the roller l covered with carding serving to feed the cloth, while the nap is raised by bristles carried by the more rapidly revolving roller m. The carding or fabric carrying the bristles may be wound helically on the rollers and secured in position. The rollers are pivotally mounted so that they may be moved into inoperative position as shown in Fig. 5. The height of the roller m and hence the degree of teaseling is controlled by a bascule h adjusted by a screw i. Portions of the cloth can be left unteaseled by raising the roller m clear of the cloth by a handle g<4>.
Patent GB-374242-A (GB)
Title: Improvements relating to emergency exits for double-deck passenger carrying vehicles
IPC: B60J9/02
Filed: 1931-05-21
Abstract: 374,242. Emergency exits and steps for vehicles. HURST, NELSON, & CO., Ltd. and INGRAM, J., of Glasgow Rolling Stock & Plant Works, Motherwell, Lanarkshire. May 21, 1931, No. 14990. [Classes 103 (iv) and 108 (i).] In an emergency exit for the passengers on the upper deck of a vehicle, the door or closure for the exit or one portion of such closure is linked with the body so that it may be dropped bodily with a substantially parallel movement so as to bring the lower end of a ladder mounted on the outer face of the closure to a position within easy access of the ground. In the construction shown the closure comprises a lower section 2 that carries a ladder 4 and is connected to the vehicle body by pairs of pivoted links 5, 6, and an upper section 3 that is hinged about its upper horizontal edge 11 so as to open outwardly, the two sections being interconnected to move simultaneously by means of chain and sprocket gearing 15, 12, and the upper sprocket wheel 12 being formed integral with a spur-wheel 13 meshing with a toothed segment 14 on the section 3. When the section 2 is released and dropped its weight is counterbalanced partly by the raising of the section 3 and partly by spring plungers 8, 9, dashpots or the like disposed between the links 5 and fixed points 7 on the inside of the section 2. In order to lock the sections in their closed position the section 2 is fitted with a rotatable member 17, which has an integral tongue 18 adapted to engage a lug 19 on the section 3 and also operates two bolts 20, 21 engaging the door or closure posts, the member 17 being operated either directly by a handle 22 on the interior of the vehicle or through the intermediary of links and levers 25 .. 30 by a handle 23 accessible to the driver. In a modification, the closure comprises one section only mounted on the vehicle by links 5, 6 in a similar manner to the section 2 in the arrangement previously described.
Patent GB-934133-A (GB)
Title: Improvements in or relating to centrifugal pumps
IPC: F04D29/58
Filed: 1962-04-18
Abstract: 934,133. Stuffing-box substitutes. KLEIN, SCHANZIN & BECKER A.G. April 18, 1962 [Aug. 2, 1961], No. 15008/62. Class 122 (5). In a centrifugal pump in which the shaft 4 is sealed by a rubbing-collar type seal 5, the non-rotatable part 6 of the seal and the pump housing 1 are mounted on separate supports 7 and 2 respectively and are sealingly interconnected by a resilient element 10, 11. The housing 1 is fixed at one point 3 but is otherwise free to expand or contract relative to the support 2. The element 10, 11 is a pair of coaxial bellows and heating or cooling fluid may be circulated through the space 12 between the bellows, through a cavity 9 in the support 7 and also through the interior of the support 2 which may be hollow.
Patent GB-1094906-A (GB)
Title: Refractory brick
Inventor: ROBERTSON ROBERT HUGH STANNUS
IPC: C04B38/00
Filed: 1964-04-10
Abstract: Bricks of forsterite (2MgO.SiO2) are made by mixing sepiolite (Mg4Si6O15(OH)2.6H2O) with at least sufficient magnesia or precursor thereof to give the MgO/SiO2 mol. ratio of forsterite, and not more than 33% in excess of this minimum amount, and firing the mixture, e.g. at at least 1200 DEG  C.  For the pure compounds the mol. ratio is 8 mols. MgO to 1 mol. sepiolite. The mixture may be fired to form a grog, crushed, sized and mixed with additional sepiolite (or other hydrated magnesium silicate), magnesia and up to 50% weight of silica or chromia shaped and fired.  The additional magnesia and sepiolite may be in the above-specified limits for the mixture. The CrO3 may be added as an aqueous solution.  The initial mixture or grog may contain a pore-forming agent, e.g. sawdust, coke, peat or cork, or pores can be formed by blowing a gas through the initial mixture or grog in the presence of a foaming agent.
Patent GB-464606-A (GB)
Title: A process for the production of starch pastes
IPC: C09J103/02
Filed: 1936-05-27
Abstract: The paste-conversion temperature of starch is reduced, e.g. by treatment with caustic soda or a thiocyanate, and thereafter the viscosity of a paste of this starch is reduced by stirring in an apparatus having discs which rotate at a peripheral speed of at least 30 metres per second.  The Specification as open to inspection under Sect. 91 comprises also the treatment of starch to lower its paste-forming temperature while subjecting it to the high-speed stirring.  This subject-matter does not appear in the Specification as accepted.  Reference has been directed by the Comptroller to Specification 208,911, [Class 121].
Patent GB-110575-A (GB)
Title: Improvements in Internal Combustion Engines.
IPC: F02M31/04
Filed: 1916-10-23
Abstract: 110,575. Sunbeam Motor Car Co., and Coatalen, L. Oct. 23, 1916. Crank chambers, cooling.-In engines intended more particularly for aircraft, the air supplied to the carburettors G passes through a casing C which encloses the crank chamber B and may form part of the wall of the fuselage or gondola. The inlet D projects in the direction of motion and lies close to the tip of the propeller. Additional air inlets which are not exposed to the forced draught may be provided.
Patent GB-952928-A (GB)
Title: Improvements in projectiles to be slidably fitted on the end of a gun barrel
IPC: F42B15/00
Filed: 1961-04-26
Abstract: 952,928. Self-propelled rifle grenades and launchers therefor. BREVETS AERO-MECANIQUES S.A. April 26, 1961 [May 5, 1960], No. 15133/61. Headings F3A and F3C. A projectile to be fired from a firearm barrel, such as a rifle grenade, comprises a rocket motor 3 and nozzles 8 which initially, via openings in a muzzle brake 7, allow some of the propelling gases from a launching cartridge to escape to the atmosphere thereby providing a torque which rotates the projectile. According to the invention the torque is maintained during flight by the action of propelling gases from motor 3. A clearance as shown by dotted lines at 9 may be provided to permit continuous access of the cartridge gases to nozzles 8 while tail tube 4 disengages from barrel 1. Various embodiments are described including placing nozzles 8 forward of muzzle brake 7 and replacing the brake 7 by an extension into which the tail tube 4 may be fitted, the nozzles 8 in this case being covered during the initial movement of the projectile. Also the nozzles may be suitably shaped to cooperate with external deflectors which may or may not form part of the tail unit 6. The pitch and shape of the deflectors and/or tail unit may be chosen to maintain, increase or decrease the initial nozzle-produced speed of rotation. Application of the invention to hollow charge projectiles is mentioned and also the use of a launching cartridge of increased power.